Charles a



0. A. SMYTH. ut Lock;-

No. 235,583. "Patented De c. 14., 1ssb.-

- INVENTOR:

, 1 a d w 1 m WM? SE S SEQ.

WITNESSES N MN ' ATTORNEYS;

UNITED STATES PATENT OFFI E.

CHARLES A. SMYTH, OF HOOPESTON, ILLINOIS, ASSIGNOR OF A PART OF HISRIGHT TO DAVID BEDELL, OF SAME PLACE.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 235,583, dated December14, 1880.

Application filed December 23, 1879.

To all whom it may concern Be it known that I, CHARLES A. SMYTH, ofHoopeston, in the county of Vermillion and State of Illinois, haveinvented a new and Improved Nut-Lock, of which the following is aspecification.

My invention relates to a nut-lock especially adapted for service uponrailroadrails at the joints thereof; and the novelty consists in theconstruction and arrangement of parts, as will be more fully hereinafterset forth, and specifically pointed out in the claim.

The object of my invention is not only to simplify the construction ofnut-locks, but also to increase the efficiency of the same.

In carrying out my invention I employ the ordinary fish-plate adapted toserve at the joints of railroadrails, being bolted thereto and securedby nuts. The nuts are to be kept in fixed positions and prevented fromturnin g.

. To this end I employ a plate-washer perforated to receive the boltsand cut away at one end to form a lip, and at the other end cut to forma locking lip, perforated as shown. This Washer-plate passes over andembraces the bolts, which are threaded and adapted to receive thesecuring-nuts. I also provide a lockplate having a recess upon one end,which receives the lip hereinbefore mentioned, and at the other end aslot, which receives the lock' ing-link. This plate is formed of onepiece of metal, and is cut and struck up in such a manner that thematerial is bent at a right angle with the plane of the blank to formside rests, which bear against nuts.

The device employed by me, and which embodies my invention, is fullyillustrated in the accompanying drawings, in which- Figure l is a sideelevation of a railroadrail, showing my invention with the nut-lock in alocked position. Fig. 2 is a central longitudinal section through theline w m, Fig. 1. Fig. 3 isa vertical section; and Fig 4, a similarsection, showing the locking-link in position.

Referring to the drawings, A represents the rail; B, the fish-plate; OG, the bolts, and l) l) the nuts. These are of ordinary construction,and comprise no part of this invention. E-represents the washenplate,perforated at distances to correspond with the bolts, and

cut at a point near one end to form a lip, a. This lip a is inclined asshown. Near the other extremity is a trifaced out, which forms a flange,b, perforated at h and bent at right angles to the plane of thewasher-plate E. The washer-plate E is passed over the threaded ends ofthe bolts and the nuts applied and secured in corresponding positions.

F represents the lock-plate, of one piece of sheet metal, and itisprovided at one end with a recess which embraces the inclined lip a, andat the other end with a slot, g, which re ceives the perforatedlocking-lip b. This plate F is struck up and cut in such a manner as toform apertures cc to receive the nuts D and to form lugs d d, whichembrace said nuts when the plate is in position. The fish-plate havingbeen put in position and the headed bolts 0 having been passed throughboth rail and fish-plate, the plate E is attached and secured by meansof the nuts I). To prevent these nuts from turning, plate F is firstengaged with the lip a, and then, being placed over the nuts, is lockedin such position by the open link G, which operates in the perforationIt of the locking-lip b.

It will be observed that both the washerplate and the lockin g-plate areformed each of onepiece of sheet metal, and,further, that theirformation may be due to one stroke of proper dies.

It will also be observed that the plate E so formed furnishes the malelocking devices for the female or lock plate F.

It will also be observed that the lugs d serve materially to strengthenthe lock and efficiently assist in carrying out the invention.

What I claim as new is The lock-plate F,.having slot g, rectangularapertures so cut as to form holding-lips d d to bear against the nuts,formed of one piece ot metal, and recessed as shown, combined with thewasher-plate E, cut away so as to form inclined lip a and locking-lip b,perforated at h, also formed of one piece of metal, the fishplate B,rails A, bolt 0, nut D,and opeu locking-link G, as and for the purpses-set'firtl CHARLES ALBERT SMYTH.

Witnesses JONATHAN BEDELL, Y DALE WALLACE.

